109371899 has 24 divisors (see below), whose sum is σ = 137733120. Its totient is φ = 85015008.

The previous prime is 109371893. The next prime is 109371943. The reversal of 109371899 is 998173901.

It is a happy number.

It is not a de Polignac number, because 109371899 - 2⁸ = 109371643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109371893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69014 + ... + 70580.

It is an arithmetic number, because the mean of its divisors is an integer number (5738880).

Almost surely, 2^109371899 is an apocalyptic number.

109371899 is a deficient number, since it is larger than the sum of its proper divisors (28361221).

109371899 is a wasteful number, since it uses less digits than its factorization.

109371899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 109371899 is about 10458.1020744684. The cubic root of 109371899 is about 478.2282760316.

The spelling of 109371899 in words is "one hundred nine million, three hundred seventy-one thousand, eight hundred ninety-nine".